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04-13-2011, 08:34 PM
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The Big 4.0
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Join Date: Sep 2009
Posts: 211
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Engine sputtering. Need help.
This is on my buddies truck not mine.
1999 Ranger 4.0 auto 4x4 203,000 miles
Okay it has some sputtering issues, it sort of chugs. The engine light is on and the code says misfire in all odd cylinders. When you first start it, it runs and idles fine, and shakes a bit. Once your going its fine, around 40 right when it upshifts, it starts to sputter/chug. Its like your hitting little 1ft snow drifts, every 1 second or so, its that violent, its almost like a pulse. When you get on it the chug goes away. It does it again whenever it upshits. It ONLY does it when its below about 2000 rpm, any higher it runs fine. I did a test on it, I powerstood it a little, just before the tires started to spin, and it was super spuddery, you could hear it in the exhaust.
He just put these parts into it trying to fix it: Plugs, Wires, Fuel filter, Air filter, Coil pack, Changed oil, cleaned MAF and IAC.
So do you guys think the engine code is on to something? Is there anything we could check to narrow down the problem? What do you guys think?
Thanks a lot for any help!
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1998 Chevy Silverado 4X4 5.7 V8
SOLD 1996 XLT 4x4 4.0 5 speed
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04-13-2011, 08:36 PM
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Get Lifted.
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Join Date: Nov 2010
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Re: Engine sputtering. Need help.
did ya clean the throttle body?
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04-13-2011, 08:42 PM
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The Big 4.0
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Join Date: Sep 2009
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Re: Engine sputtering. Need help.
Just the mass air flow sensor, and the idle air controller. Should we go more in depth then that?
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1998 Chevy Silverado 4X4 5.7 V8
SOLD 1996 XLT 4x4 4.0 5 speed
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04-14-2011, 03:46 PM
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The Big 4.0
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Re: Engine sputtering. Need help.
Bumpity bump. Any more ideas?
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1998 Chevy Silverado 4X4 5.7 V8
SOLD 1996 XLT 4x4 4.0 5 speed
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04-21-2011, 12:23 PM
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The Big 4.0
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Re: Engine sputtering. Need help.
Bump, Anyone?
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1998 Chevy Silverado 4X4 5.7 V8
SOLD 1996 XLT 4x4 4.0 5 speed
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04-21-2011, 01:09 PM
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Ford Motor Company
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Join Date: Feb 2011
Posts: 266
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Re: Engine sputtering. Need help.
could it be the coil pack? it seems odd that its on all the odd cylinders. at least to me
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2004 4.0L extended cab FX4 Level II 5r55e
1998 3.0L extended cab XLT 2wd 4r44e
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04-21-2011, 01:13 PM
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The Big 4.0
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Join Date: Sep 2009
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Re: Engine sputtering. Need help.
Oh sorry forgot to update. Now its just on cylinder 3, and its got a new coil pack.
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1998 Chevy Silverado 4X4 5.7 V8
SOLD 1996 XLT 4x4 4.0 5 speed
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04-21-2011, 01:20 PM
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Still here
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Join Date: Mar 2011
Posts: 371
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Re: Engine sputtering. Need help.
I would say check the coil pack. Make sure eveything is connected and tight. You can also check the ignition module and/or crank position sensor. With all this new computerized crap it is harder to tell.
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Guess I wasn't fast enough. With it only being cylinder 3 I would say check the plug wire and the plug. May be fouled or not connecting properly.
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2004 F-150 FX4 Supercab, Dark Shadow Grey, 5.4 liter Triton V8, Flowmaster Cat Back exhaust, K&N Drop-in, Intake "Gotts" Mod, Edge Programmer, 2.5" Level, Front tow hooks, 33" Falken Rocky Mountain ATS
Future mods: CB Radio, Dual band Ham Radio
The older I get the more I realize it is worthless to worry about tomorrow when you are living today. Love your family and friends, live like there is no tomorrow.
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04-21-2011, 10:24 PM
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The Big 4.0
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Re: Engine sputtering. Need help.
Its got new plugs and wires too.
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1998 Chevy Silverado 4X4 5.7 V8
SOLD 1996 XLT 4x4 4.0 5 speed
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04-23-2011, 09:00 AM
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Still here
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Re: Engine sputtering. Need help.
Was it running ruff before you guys replaced all this stuff or after. Sorry guess I'm just not understanding the original post.
Was there any water or coolant in the oil when it was changed. The head gasket may be blown at that one cylinder. Also check to see if the exhaust has a sweet smell to it. That can also mean a damaged gasket.
Sorry for all of the check this check that just trying to think of all the least expensive and simplist to fix options.
__________________
2004 F-150 FX4 Supercab, Dark Shadow Grey, 5.4 liter Triton V8, Flowmaster Cat Back exhaust, K&N Drop-in, Intake "Gotts" Mod, Edge Programmer, 2.5" Level, Front tow hooks, 33" Falken Rocky Mountain ATS
Future mods: CB Radio, Dual band Ham Radio
The older I get the more I realize it is worthless to worry about tomorrow when you are living today. Love your family and friends, live like there is no tomorrow.
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04-23-2011, 10:06 AM
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The Big 4.0
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Join Date: Sep 2009
Posts: 211
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Re: Engine sputtering. Need help.
It was running like that before and after. So we dumped a bunch of money into it and it still runs the same. We didnt see any coolant anywhere, Ill check the exhaust tonight.
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1998 Chevy Silverado 4X4 5.7 V8
SOLD 1996 XLT 4x4 4.0 5 speed
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04-23-2011, 11:20 AM
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Banned
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Join Date: Mar 2010
Posts: 14,046
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Re: Engine sputtering. Need help.
Are the wires in the right firing order?
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04-25-2011, 08:21 PM
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Learning to use the forums
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Join Date: Apr 2011
Posts: 13
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Re: Engine sputtering. Need help.
How about a vacum hose leak. I had that problem and it drove me crazy for a week. My truck would start fine but just chug at idle.
Just saying.
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